Galfan Gabions, Galfan + PVC Coated Wire Mesh Gabions, Box Gabions, Gabion Baskets and Mattress Galfan Coated

Galfan Gabions, or Galfan Coated Gabions are steel wire mesh gabions woven or welded, specially treated with Zn + AL coating plus MM offering an excellent corrosion resistance. Galfan gabions are aluminum galvanized, offering better property in corrosion protection than zinc galvanized gabions, suitable in soil retaining, slope protection, especially for offshore areas and long term uses.

Galfan coating has two types according to coating material ratio: one is 95% zinc and 5% aluminum, the other is 90% zinc and 10% aluminum coating.

Material: The steel wire used in the manufacturing of the gabion is heavily galfan( [Zn-5 Al-MM] alloy) coated soft temper steel. A PVC coating is then applied to provide additional protection for use in polluted, contaminated or aggressive environments: in salt, fresh water, acid soil or wherever the risk of corrosion is present. The PVC coating has a nominal thickness of 0.50 mm to 1.00mm. Galfan coated gabions plus PVC coating are strong and durable for long term uses.

Galfan Coated Gabions Zn 95% + AL 5%

GalFan + PVC Coated woven wire mesh gabions, mechanically edged/selvedged

Woven, double twisted, hexgonal shaped steel wire Mesh, (Zn90%+Al10%)+PVC coated
Popular mesh opening applied: 80x100mm.
One diaphragm every one meter (or at 3ft center) is positioned to divide the gabions into cells.
This structure makes the whole gabion flexible and easy to handle.
This type of woven or knitted mesh gabion has selvedge wire and lacing wire for reinforcement. All mesh panel edges are selvedged with a wire having a greater diameter than the woven or knitted wire.

Galfan (95% zinc, 5% aluminum or 90% zinc 10% alum) coating and its benefits:
Galfan gabion gets its name from its wire material: a kind of heavy Galfan soft tempered steel. Compared with traditional galvanized steel gabions with pure zinc coating, Galfan gabion features a heavy zinc – aluminum coating layer which enables an excellent corrosion resistance. The corrosion resistance of Galfan gabion doubles that of traditional pure zinc plating.

Wire Material Requirements:
The pvc coating for Galfan Gabions can be checked below (take an example of the 80x100mm galfan gabion), from the changes of the wire diameter before and after coating:
 
Knitted or woven wire: 3.7mm after PVC coating (2.7mm heavy Galfan before pvc coating)
Selvedge wire: 4.2mm after PVC coating (3.2mm heavy Galfan before pvc coating)
Lacing wire: 3.2mm after PVC coating (2.2mm heavy Galfan before pvc coating)

Zinc plating or galvanization required for the Galfan Gabions:
Galvanization on Kitted & Lacing wire: Heavy GALFAN (ZnAL) min 245gr/m2
Galvanization on Selvedge wire: Heavy GALFAN (ZnAL) min 255gr/m2

Normal Unit Sizes:
Galfan Gabion 1X1X1M
Gafan Gabion 2X1X1M
Galfan Gabion 3X1X1M
Gabion Mattress 3X2X0.17M
Gabion Mattress 3X2X0.23M
Mattress 3X2X0.3M, Zn 10-Al Coating
Mattress 6X2X0.3M, Zn 10-Al Coating
 
Common Mesh Sizes:
6x8cm,8x10cm,10x12cm,12x15cm,16x18cm

Regular size for gabion box:

wire diameter:2.7x3.4x2.2mm,mesh size:80x100mm,box size:2x1x1m

Regular size for gabion mattress:

wire diameter:2.2x2.7x2.2mm,mesh size:60x80mm,mattress size:3x2x0.3m

Regular size for gabion mesh roll

wire diameter:2.7x3.4mm,mesh size:60x80mm/80x100mm,roll size:2x50m

Applications of Galfan Gabions

Galfan gabion boxes or mattresses are filled with stones at the project site to form flexible, permeable, monolithic structures such as retaining walls, channel linings, and weirs for erosion control projects. Details as following:
1. Earth Retaining Structures
2. Reinforced Soils
3. River Training
4. Coastal Protection
5. Canal Lining
6. Dam Overflows
7. Scour Protection
8. Marine Revetment
9. Rock Fall Protection
10. Headwall Construction
11.Controlling and leading the river and flood.
12. Flood discharge and lead flow.
13. Protecting the bridge.
14. Seaport project.

Hexagonal Mesh Gabions for Civil Construction Project in Latvia

Gabion Box of Hexagonal Steel Wire Mesh, with Galfan Coating (Zinc 95%, Aluminium 5% ) and PVC coating

Gabion box wire overlay meet C4 enviornmental exposure class (Zinc 95%, Aluminium 5% with PVC coating) 
Mesh: Gabion boxes must be made from twisted steel wire netting with mesh size - 60x80mm, wire diameter - no less than 2,7m; with overlay - 3,4mm.
Gabion box frame wire: Wire diameter no less than 3,4mm and with overlay - 4,2mm. 

Gabion box sizes: 
2m x 4m H - 0,30m
3m x 4m H - 0,30m

1m x 2m H - 0,50m
1m x 3m H - 0,50m
1m x 4m H - 0,30m
2m x 3m H - 0,30m
2m x 4m H - 0,30m
3m x 4m H - 0,30m

1m x 2m H - 1m
1m x 3m H - 1m
1m x 2m H - 1m (or 3m) 
Delivered to Latvia

Galfan 95 Rock Basket System for Turkey Project

Green coated mesh panels: 
4.0x3.0x0.76 m 
4.0x2.0x1.0 m
Wire: Galfan 95 coated steel wire, then green pvc coating
Delivery to Turkey

GABION BASKETS AND MATTRESSES, GALFAN COATED in 5mm WIRE THICKNESS

Gabion Baskets 5mmØ GALFAN COATED TYPE
1800mm LONG x 900mm WIDE x 1000mm HIGH GABION BASKET HELD TOGETHER
WITH 8x10 DOUBLE TWISTED HEXAGONAL STEEL WOVEN WIRE
MESH AS PER ASTM A975-97 (TENSILE STRENGTH BETWEEN 372-470 ACCORDING TO ASTM A856), 5mmØ GALFAN COATED TYPE

Gabion Mattress 5mmØ GALFAN COATED TYPE
3600mm LONG x 2400mm WIDE x 150mm HIGH (9' x 6' x 6")
Galvanized Mattressess, held together with 8 x 10 double twisted hexagonal steel woven wire mesh as per ASTM A975-95 5mmØ GALFAN COATED